http://bugs.winehq.org/show_bug.cgi?id=26489
--- Comment #2 from melekor@projectmagma.net 2011-03-28 20:04:48 CDT --- Well, those keys work fine in native Ubuntu apps not running under WINE. Seems to me if the problem was VirtualBox, then it would be showing up everywhere and not just WINE apps, no?
So perhaps the problem is between Ubuntu and WINE then. You said the test app worked fine, what was your test setup?
I will have access to a real non-virtualized Ubuntu some time later this week.